<!doctype html>
<html lang="en">
 <head>
  <meta charset="UTF-8">
  <title>Document</title>
  
 </head>
 <body>
  
  <select name="" id="selProvince">
	<option value="-1">==请选择==</option>
	<option value="0">四川省</option>
	<option value="1">黑龙江</option>
	<option value="2">贵州省</option>
  </select>
  <select name="" id="selCity"></select>
 </body>
</html>
